﻿using Common;
using Microsoft.Extensions.DependencyInjection;
using SqlSugar.Extensions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Extensions.Cors
{
    /// <summary>
    /// Cors启动服务
    /// </summary>
    public static class CorsSetup
    {
        public static void AddCorsSetup(this IServiceCollection services)
        {
            if (services == null) throw new ArgumentNullException(nameof(services));
            services.AddCors(c => {
                if (!AppSettings.app(new string[] { "Startup", "Cors", "EnableAllIPs" }).ObjToBool())
                {
                    c.AddPolicy(AppSettings.app(new string[] { "Startup", "Cors", "PolicyName" }),
                        policy => {
                            policy.WithOrigins(AppSettings.app(new string[] { "Startup", "Cors", "IPs" }).Split(','))
                    .AllowAnyHeader()//Ensures that the policy allows any header.
                    .AllowAnyMethod();
                        });
                }
                else
                {
                    //允许任意跨域请求
                    c.AddPolicy(AppSettings.app(new string[] { "Startup", "Cors", "PolicyName" }),
                        policy =>
                        {
                            policy
                            .AllowAnyOrigin()   // 允许所有站点跨域请求
                            .AllowAnyMethod()   // 允许所有请求方法
                            .AllowAnyHeader()   // 允许所有请求头
                            //.AllowCredentials() // 允许Cookie信息
                            .SetIsOriginAllowed((host) => true)
                            ;
                        });
                }
            });

        }
    }
}
